I've met nurses who have met, dated and married doctors. Those nurses had "class" and I don't think it was there intent. They were sought after and not the seekers. Work at a teaching hospital to meet the med students, do your work, dress like a "doctor's wife", and have a "good" reputation.
i worked medical & surgical floors over 20 years initally as an "excellent nurse" to all of my patients. The last years I provided excellent care daily to 1-2 patients and rotated the patients daily because the demands became unreasonable. Complete your assessments within the first hour if possible. Eyeball everything you have to do while completing assessments. Set up and administer meds by the 2nd hour. Complete a first charting within the first 4 hours and documentation. I worked agencies and probably over 50 facilities. The "good" nurses on the medical and surgical units know how to chart timely, and heaven only knows what they are really doing. Help your coworkers and they will help you. I changed to dialysis chronic working with four patients, then to acute working with one. Your are taught everything you need to know, and you will have no problem completing your tasks. I also worked with children in psych and completed my tasks. There are hundreds of areas to work that are not stressful. Pray and search. I don't believe you are the problem and I think it a shame you were given that feedback.